diff --git a/Doc/lib/libsocket.tex b/Doc/lib/libsocket.tex
index 4d3a00a..6c700a7 100644
--- a/Doc/lib/libsocket.tex
+++ b/Doc/lib/libsocket.tex
@@ -69,7 +69,7 @@
 \var{host} portion.
 
 \versionadded[2.5]{AF_NETLINK sockets are represented as 
-pairs \code{\var{pid}, \var{groups}}.}
+pairs \code{\var{pid}, \var{groups}}}
 
 All errors raise exceptions.  The normal exceptions for invalid
 argument types and out-of-memory conditions can be raised; errors